A Bizarre Genetic Parasite

Another insect, a scale insect, has an even more bizarre genetic parasite. When its eggs are fertilized. sometimes more than one sperm penetrates the egg. If this happens, one of the sperm fuses with the egg's nucleus in the normal way; the spare sperm hang around and begin dividing as the egg divides. When the creature matures, the parasitic sperm cells eat out its gonads and replace them with themselves. So the insect produces sperm or eggs that are barely related to itself, an astonishing ...

 The Flow of Semen Every Sixty Seconds

Humanity pumps 53.4 billion liters of bloodper minute, but that red river is not surprising; it must flow to sustain life.  At the same time, humanity's male organs eject forty-three tons of semen, and the point is that though each ejaculation is also an ordinary physiological act, for the individual it is irregular, intimate, not overly frequent, and not even necessary. Besides, there are millions of old people, children, voluntary and involuntary celibates, sick people, and so forth. And y...